Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Strengthening structures with externally prestressed tendons: literature review
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
2005 (English)Report (Other academic)
Abstract [en]

Strengthening and/or upgrading of concrete structures with bonded steel or FRP (Fiber Reinforced Polymers) materials or by use of external tendons have now been used for some time. External prestressing may be defined as a prestress introduced by tendons located outside a section of a structural member, only connected to the member through deviators and end-anchorages. The main advantages using this technique are; higher utilization of small sectional areas, ease in inspection of the tendons and in their replacement and low friction losses. This type of prestressing can be applied to both new and existing structures that need to be strengthened due to several reasons such as: changes in use, deficiencies in design or construction phase and structural degradation. External prestressed cables of FRP materials have shown to be an alternative to steel cables. Good durability properties and a first-rate behaviour in creep and relaxation have given very good results so far. Bonding prestressed FRP laminates or sheets to a structures surface has proven to be efficient and gives also a better utilization of the strengthening material. The weak part for both external cables as well as bonded laminates, when using FRP materials, has shown to be anchorage. Often the anchorage has problem to handle the high stresses that would justify the use of FRP materials in prestressing. However this is changing with a number of research projects around the world focusing on the anchorage issue. This literature review gives a short description of external prestressing for concrete structures and steel structures. The report then focus on the different types of external prestressing, with steel tendons, FRP tendons and bonded FRP materials. A review of some examples of theory follows and then a view on some codes, ending the report with structures strengthened with external prestressing.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2005. , 81 p.
Series
Technical report / Luleå University of Technology, ISSN 1402-1536 ; 2005:06
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-22954Local ID: 4fec32d0-2805-11dd-8187-000ea68e967bOAI: oai:DiVA.org:ltu-22954DiVA: diva2:996003
Note
Godkänd; 2005; 20080522 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

Open Access in DiVA

fulltext(2588 kB)191 downloads
File information
File name FULLTEXT01.pdfFile size 2588 kBChecksum SHA-512
28f7f040f8e076a5a6c5e7128b8c31cc30a32ce2bcd70276e753aa9ee6090cbe5e049433320b75d949a987b5808ed6b46c109d3b0fec756978b9967953978285
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Nordin, Håkan
By organisation
Structural and Construction Engineering
Infrastructure Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 191 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 161 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf